Samsung MAX-N22 Manuale utente

3 CD CHANGER

MINI MINI COMPONENT

MAX-N22

SERVICE Manual

MICRO COMPONENT SYSTME CONTENTS

Standby

Mono/ST

TUNER CD TAPE AUX

Band

Disc 1

CD Repeat Disc Change

Open/Close

Disc 2 Disc 3

Vol.

Hi Speed

Dubbing

Program/Set

Phones

AI Off/Sleep

Timer On/Off Timer/Clock

Demo

S.BASS

Down Preset/Manual Up

CD Synchro /

1. Alignment and Adjustments

2. Exploded Views and Parts List

3. Electrical Parts List

4. Block Diagrams

5. PCB Diagrams

6. Wiring Diagram

7. Schematic Diagrams

ELECTRONICS

Printed in Korea

Code no. AH68-00073R

1-1

Samsung Electronics

OUTPUT

AM SSG

450KHZ

INPUT

AM ANT

Speaker Terminal

60cm

TFT1

VTVM Oscilloscope

1. Alignment and Adjustments

1-1 Tuner

FM THD Adjustment

Output

Output 1kHz 28dB

60 dB

Minumum Distortion (0.3% below)

(Figure 1-1)

SSG FREQ.

Adjustment

point

(TFT2)

98 MHz

FM DETECTOR COIL

AM(MW) I.F Adjustment

Maximum output (Figure 1-3)

SSG FREQ.

Frequency

Adjustment

point

(TFT1)

450 kHz

522 kHz

AM I.F COIL

FM Search Level Adjustment

Adjust IVR1 so that “TUNED” of FLT is

lighted (Figure 1-2)

4Gain : 20dB(CE standard)

Figure1-2 FM Auto Search Level Adjustment

Figure1-3 AM I.F Adjustment

Figure1-1 IF CENTER and THD Adjustment

SSG FREQ.

Adjustment

point

(TVR1)

98 MHz

BEACON

SENSITIVITY

SEMI-VR(20KΩ)FM SSG GND

28 dB

FM SSG

Output

GND

Speaker

Terminal

Antenna

Terminal

Distortion Meter

Input

SET

Input

output

Oscilloscope

FM IN

FM Antenna

SET

TVR1

20KHz

* When adjusting T.H.D., readjust I/F coil on the Tuner Pack.

OUTPUT

1-2 Samsung Electronics

1-1-2 AM(MW),LW,SW1,SW2 Adjustment

Circuit Measuring Instrument & Step S.S.G Radio dial Adjusting Adjust for

to be Arrangement Frequency Setting Point

Adjusted

1 522KHz 522KHz TL11 Aduust for 1.0V±0.1V at the low.

OSC Connect AM signal (IR117)

generator to loop

antenna,VTVM AND

oscilloscope 2 1611KHz 1611KHz - Check for 7.0V±1.0V at the high.

(Fig 1-3) (IR117)

(MW)

RF “ 1 594KHz 594KHz TL10 Maximum out

DET “ 1 594KHz 594KHz - Check for 1.2V±0.03V at the location NO

ATT:60dB of IC006(104M) after short-circuit IC1(0.47u).

INTER FREQ “ 1 455KHz 522KHz IFT1 Maximum out

OSC Fig 1-3 1 146KHz TL6 Aduust for 2.0V±0.1V at the low.

LW 2 290KHz - Check for 7.0V±1.0V at the high.

RF 1 150KHz 150KHz TL9 Maximum out

OSC Fig 1-3 1 2.3MHz TL4 Aduust for 1.0V±0.1V at the low.

SW1 2 7.3MHz - Check for 8.5V±1.0V at the high.

RF 1 3.5MHz 3.5MHz TL8 Maximum out

OSC Fig 1-3 1 9.5MHz TL3 Aduust for 1.5V±0.1V at the low.

SW2 2 26.1MHz - Check for 8.0V±1.0V at the high.

RF 1 10MHz 10MHz TL5 Maximum out

1-3

Samsung Electronics

1-2-1 To Adjust Tape Speed

* Measuring tape: i) MTT-111 CN(or equivalent)

(Tapes recorded with 3kHz)

ii) MTT-5512 (or equivalent)

Notes

SPEED

Control

MTT-111N

(3KHZ)

MTT-111

(3KHZ)

3 kHZ ±1% Fig. 1-4

Fig. 1-4

A&B Deck

deviation : 60Hz

-5200~6600Hz

Check

Remark

Standard Figure

Adjust

Point

Item

Step Tape

SVR3

Adjustment

HI SPEED

Control

Azimuth

1MTT-111CN 8KHZ Fig.1-4

Fig. 1-6

Output:Maximum

Remark

Standard Figure

Adjust

Point

Item

Step Tape

Adjustment

screw of HEAD

L,R

Unbalance

MTT-112B

(1KHZ)

MTT-5512

±5dB Fig. 1-5

Fig. 1-5

SPEAKER

VTVM (A-DECK)

60KHZ±1KHZ(MAX900)

85KHZ±1KHZ(MAX920) SP2

Remark

Frequency

Range Figure

Adjust

Point

Item

Step Tape

SVR4

SFT1

Record

Frequency

Speaker

Terminal

output

Frequency Counter

Figure 1-4

Figure 1-6

Recording /Play head

AZIMUTH control

Figure 1-5

In Out

Cassette Deck Oscilloscope

SET

(GND)

VTVM

V H

1-2 Cassette Deck

Alignment and Adjustments

SP2

SPEAKER

Pre-

Setup

Press play

button after

puting tape into

the Deck1

Press play

button after

puting tape into

the Deck1

Pre-

Setup

Press Rec button after

connecting (Fig1-5)

Press Rec button after

connecting (Fig1-5)

Pre-

Setup

Press Play button

after puting tape

into the Deck1

Rec Bias

Voltage

1MTT-5512

(3KHZ)

7V±0.5V Connete to MWF6 from

AC Meter.

Remark

Votage

Range

Adjust

Point

Item

Step Tape

SVR1

SVR2

Pre-

Setup

Press Rec button

after puting tape

into the Deck1

- Adjust SPEED Control

- Adjust Record Frequency

- Adjust Azimuth

- Adjust Rec Bias Voltage(Only MAX920 Model)

Samsung Electronics 6-1

6. Wiring Diagram

Samsung Electronics 4-1

4. Block Diagram

MIC4

TDA7440D

MIC1

TAPE-EQ

KA22291

MIC6 LA1837

IF+MPX

UIC1

LC86P7284

MIC1

TDA7265

MIC7 LC72131

PLL

17 16 13

5222 21

728

LCD

VC30V

7812

12V

4-1 Main

4-2 Samsung Electronics

4-2 CD Part(COMMON)

SLED

MOTOR

SPINDLE

MOTOR

PICK - UP

TRACKING

ACTUATOR

FOCUSING

ACTUATOR

A.B.C.D.E.F

LD.PD

DISC

SP+ SP- TRK+ TRK- FCS-

11 12 26 27 1 2

+5V

19 10 25 3

43 46 50 48 71P/U IN

LIMIT S/W

OPEN/CLOSE MOTOR

210

41 69.70 65.66.

67.68

33.30

29.25

22.24.23

35.36.37

MOTOR CONTROL

S/W SENSOR

FOK

MAIN PCB MAIN PCB

MICOM CTRL LINE POWER / AUDIO LINE

36.37.38 68 25.26.30 29

10.70.72

73.75.76

MCK. MDATA. MLT

ISTAT

SQDT. LKFS. SOS1

SQCK

A. GND

R-CH

L-CH

GND

B+

RESET

LOCK.SMEF.WDCH.SMON.SMSD

SL IN

SP IN

TE IN

EF IN

VREF

SL-

SL+

MOTOR/ACTUATOR DRIVER

ASSP

KB9223

NIC 9223

SCW1 SCW4

SIC1,SIC2,SIC3

DIGITAL SIGNAL PROCESSOR

16.9344MHz

66.69

EFM.TRCNT

UP/DOWN

ROULETTE

MOTOR

KA9258

NIC 9258

KS9286

NIC9286

NIC9223

KB9223

Samsung Electronics 7-1

7. Schematic Diagram

7-1 CD Part

7-2 Samsung Electronics

7-2 MAIN Part

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